macbook pro 15" question

I know apple just updated their MBP line in October, but I am ready to purchase a new MBP since i got a lot of cash after christmas, and was wondering if Apple usually bumps up their specs at macworld. I think they bumped their specs last february but not entirely sure, anyone have any ideas??

im looking to currently buy the 15" 2.53ghz model, just not sure if i should wait a month or two or if this current model will be around for a while?